Lokar S-68154 Neutral Safety Switch With Washer And For Sale Neutral Safety Switches | Speedway Motors Fan Humidity Switch Made In The U.S.A.; All Mounting Hardware Incl. Lifetime Warranty; Choice Of Back-Up Or Neutral Safety Switch. FEATURES: Neutral Safety Switch; For Lokar... It appears to be the RPM-100 module since it is failing in ways associated with solid state (electronic) controls as opposed to a photo cell failure All mounting hardware included Made in USA Choice of back-up or neutral safety switch. Stainless Steel adjustable toggle latch with safety catch and wide catchplate (4206-601K1) | WDS